tea.h File Reference

TEA (Tiny Encryption Algorithm) More...

#include "core/crypto.h"

Go to the source code of this file.

Data Structures

struct  TeaContext
 TEA algorithm context. More...
 

Macros

#define TEA_PRIVATE_CONTEXT
 
#define TEA_BLOCK_SIZE   8
 
#define TEA_NB_ROUNDS   32
 
#define TEA_CIPHER_ALGO   (&teaCipherAlgo)
 

Functions

error_t teaInit (TeaContext *context, const uint8_t *key, size_t keyLen)
 Key expansion. More...
 
void teaEncryptBlock (TeaContext *context, const uint8_t *input, uint8_t *output)
 Encrypt a 16-byte block using TEA algorithm. More...
 
void teaDecryptBlock (TeaContext *context, const uint8_t *input, uint8_t *output)
 Decrypt a 16-byte block using TEA algorithm. More...
 
void teaDeinit (TeaContext *context)
 Release TEA context. More...
 

Variables

const CipherAlgo teaCipherAlgo
 

Detailed Description

TEA (Tiny Encryption Algorithm)

License

SPDX-License-Identifier: GPL-2.0-or-later

Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.

This file is part of CycloneCRYPTO Open.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author
Oryx Embedded SARL (www.oryx-embedded.com)
Version
2.4.0

Definition in file tea.h.

Macro Definition Documentation

◆ TEA_BLOCK_SIZE

#define TEA_BLOCK_SIZE   8

Definition at line 43 of file tea.h.

◆ TEA_CIPHER_ALGO

#define TEA_CIPHER_ALGO   (&teaCipherAlgo)

Definition at line 47 of file tea.h.

◆ TEA_NB_ROUNDS

#define TEA_NB_ROUNDS   32

Definition at line 45 of file tea.h.

◆ TEA_PRIVATE_CONTEXT

#define TEA_PRIVATE_CONTEXT

Definition at line 39 of file tea.h.

Function Documentation

◆ teaDecryptBlock()

void teaDecryptBlock ( TeaContext context,
const uint8_t *  input,
uint8_t *  output 
)

Decrypt a 16-byte block using TEA algorithm.

Parameters
[in]contextPointer to the TEA context
[in]inputCiphertext block to decrypt
[out]outputPlaintext block resulting from decryption

Definition at line 133 of file tea.c.

◆ teaDeinit()

void teaDeinit ( TeaContext context)

Release TEA context.

Parameters
[in]contextPointer to the TEA context

Definition at line 167 of file tea.c.

◆ teaEncryptBlock()

void teaEncryptBlock ( TeaContext context,
const uint8_t *  input,
uint8_t *  output 
)

Encrypt a 16-byte block using TEA algorithm.

Parameters
[in]contextPointer to the TEA context
[in]inputPlaintext block to encrypt
[out]outputCiphertext block resulting from encryption

Definition at line 97 of file tea.c.

◆ teaInit()

error_t teaInit ( TeaContext context,
const uint8_t *  key,
size_t  keyLen 
)

Key expansion.

Parameters
[in]contextPointer to the TEA context to initialize
[in]keyPointer to the key
[in]keyLenLength of the key
Returns
Error code

Definition at line 69 of file tea.c.

Variable Documentation

◆ teaCipherAlgo

const CipherAlgo teaCipherAlgo
extern

Definition at line 46 of file tea.c.